Mylene is assigned to replace Ironheart and investigate an Eastern bloc research facility run by Dr. Green which is experimenting on mutant children and goes undercover as a nurse. The Western Bloc suspect that The Eastern Bloc are using mutants for military purposes, and there may be a review of the Extermination Law which will sanction their use. Dr. Green causes a space station crash into the moon causing a nuclear explosion and appears to have his own agenda, supported by a man called Nelkovski. Meanwhile, the Western bloc receives an apparently childish letter threatening to explode nuclear weapons secretly stored by the two blocs in defiance of their nuclear disarmament treaty using a "Reverse Explosion" system unless they release all those being persecuted. Agent 009-3 flies in to an isolated facility in the Amazon which appears to be the source of the letter, but finds no evidence although she does see an Eastern bloc spy. Meanwhile, Eastern bloc troops surround Dr. Green’s research facility. They order the staff to leave, but the mutant children to stay inside.